The Government Accountability Office accepted a request from three Oregon members of Congress to look into the problems of Cover Oregon. The exchange has spent more than $200 million in federal grant money but still does not allow members of the public to enroll online.

"We need to clarify what really went on, what transpired, so that there are not false allegations or under or over-estimates of what took place," he said. "We need facts, so that the people can put this matter behind them."

Richardson is also running for governor. The office of Democratic Governor John Kitzhaber did not respond to a request for comment.

The GAO says its probe will also include other states, bout it did not specify which ones.